Thomas hansbrow



UNITED sTATEs PATEN OFFICE,

THOMAS HANSBROW', OF SACRAMENTO, CALIFORNIA.

. PUMP.

Specification of Letters Patent No.

reference being had to the accompanying (.lrawings, makingl a part ofthis specification, in Which- Figure l, shows a perspective vieiv of mypump and F ig. 2, is a vertical section of the same.

Similar letters of reference in both views represent correspondingparts.

To enable those skilled in the art to fully understand my invention, Iwill proceed to describe its construction and operation with referenceto the drawing.

The pump-cylinder, A, is secured by means of a plate or ear, B, to asuitable board or standard. The plate, B, forms the bearing for therock-shaft, C, which bears the crossshaped piece, D. This piece formstwo sockets, a, a, for the hand lever, E, and an arm, which connects bymeans of a pivot, c, with the sliding plate, F. Instead of this arm atoothed segment gearing into a rack cut into the under side of theplate, F, may be employed. rlhis plate connects by means of an angularprojection or standard, d, With the piston, Gr, so that by imparting anoscillating motion to the rock shaft, C, a reciprocating motion of thepiston is produced. The Water enters through the suction-pipe, H, intothe valve-chest, I, Which communicates with the interior of the cylinderthrough channels, c. The receiving-valves j, close down on the inclinedseats, g, so that a small pressure is suflicient to raisethe same, and

31,314, dated February 5, 1861.

the Water passes out through the dischargevalves, It, which close theapertures leading from the valve-chest to the air-vessel, J.

The air-vessel is secured to the top of the valve-chest by means ofstirrups, K, which are pivoted to the sides of the vave-chest, so thaton releasing the set-screws, z', said stirrups can be turned down, andthe air vessel can now be easily removed. The Water rises in theair-vessel, and it discharges through the spout M.

By having the inclined valves arranged above the cylinder, any sand orother solid substances that may be drawn in by the pump, are preventedfrom lodging on the inclined valves or their seats, and thus the pump isprevented from becoming inc perative. The valves are also, by thisarrangement kept tight, so that the charge of Water, necessary tooperate the pump'cannot escape.

By the sliding plate-arrangement,,to Work the piston the lat-ter is notonly operated but is guided in a straight line.

I do not claim broadly the use of inclined valves and valve seats, but,

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is The arrangement of the inclined valves f,seat g, and suction pipe H above and with the cylinder A and piston Grin combination with the sliding guide plate F and oscillating armedlever receiving piece D in the manner and for the purposes herein shownand described.

THOMAS I-IANSBROIV.

Vitnesses DANIEL ST. O. STEVENS, JOHN F. MADDEN.

